2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

s4 throttlebody assembly on s5 manifold??

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Old Sep 5, 2007 | 05:41 PM
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re-rx7's Avatar
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s4 throttlebody assembly on s5 manifold??

will it bolt up with no problems are they the same????
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Old Sep 6, 2007 | 04:42 PM
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If you are bolting it onto a S5 engine with a S5 ECU, no it wont work because of the TPS.

If you are using a S4 ECU then yes you can put it on with no issues, make sure you use the S5 TB spacer though.

Why would you want to do this? If you are doing it to run a mechanical OMP then you can easily swap the OMP control lever from the S4 TB to the S5 TB. You can view the writeup here
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